What primary risk mitigation strategy is the rationale for making humanity multi-planetary?

Answer

Acting as an insurance policy against extinction-level events on Earth

The fundamental reasoning behind the drive to establish humanity across multiple planets is explicitly identified as risk mitigation, functioning as an essential insurance policy. This policy is designed to safeguard the continuation of human civilization and consciousness against catastrophic, extinction-level events. These potential threats are broad, encompassing both large-scale natural disasters and self-inflicted catastrophes originating on Earth. By establishing a reliable backup location on a different celestial body, the existence of the species avoids relying on a single point of failure, thereby ensuring long-term survival.

What primary risk mitigation strategy is the rationale for making humanity multi-planetary?
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